68298938 has 4 divisors (see below), whose sum is σ = 102448410. Its totient is φ = 34149468.

The previous prime is 68298889. The next prime is 68299001. The reversal of 68298938 is 83989286.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 65011969 + 3286969 = 8063^2 + 1813^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 68298938.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17074733 + ... + 17074736.

Almost surely, 2^68298938 is an apocalyptic number.

68298938 is a deficient number, since it is larger than the sum of its proper divisors (34149472).

68298938 is a wasteful number, since it uses less digits than its factorization.

68298938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34149471.

The product of its digits is 1492992, while the sum is 53.

The square root of 68298938 is about 8264.3171526751. The cubic root of 68298938 is about 408.7627543895.

The spelling of 68298938 in words is "sixty-eight million, two hundred ninety-eight thousand, nine hundred thirty-eight".